"It's free Palestine until Palestine is free!!!" she wrote under the post that included photographs and video of her among the protestors.
Saturday saw worldwide protests as well as the US in support of Palestinians who have been under Israeli airstrikes since Monday.
The demonstrators called on Tel Aviv to stop its attacks on Gaza.
Nearly 200 Palestinians -- including dozens of children and women -- have been killed and 1,235 injured since May 10 when Tel Aviv launched an offensive in response to rocket attacks from Palestine.
Tensions that started in East Jerusalem in the Muslim holy month of Ramadan spread to Gaza after Palestinian resistance groups there vowed to retaliate against Israeli assaults on the Al-Aqsa Mosque and Sheikh Jarrah neighborhood.
